There was a book published back in the '70s that I'm looking for. It
was called [something something] _Divisions of the Bipolar Mind_.
The jist of this book is that Homo brains were significantly
different as late as 1200 BC compared to modern brains, in that the
separation between the conscious and subconcious mind was not as
wide as today. Theory was that this let to episodes like in the
_Iliad_, when hero-whose-name-escapes-me actually SEES the gods and
starts attacking them--a hallucination. What's this book called?